<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb>
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 文本框 -->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" class="input-with-select" clearable
            @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="5">
          <el-button type="primary" @click="goAdd">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 表格列表 -->
      <el-table :data="this.goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格（元）" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="95px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deteteById(scope.row.goods_id)">删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum" :page-sizes="[3, 5, 10, 15]" :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper" :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        // 获取商品列表的路由参数
        queryInfo: {
          // 查询参数
          query: '',
          // 当前页码
          pagenum: 1,
          // 每页显示条数
          pagesize: 10
        },
        // 商品列表
        goodsList: [],
        // 商品的总条数
        total: 0
      }
    },
    created() {
      this.getGoodsList()
    },
    methods: {
      // 获取商品列表
      async getGoodsList() {
        const {
          data: res
        } = await this.$http.get('goods', {
          params: this.queryInfo
        })
        if (res.meta.status !== 200) {
          return this.$message.error('商品列表获取失败')
        }
        // this.$message.success('商品列表获取成功')
        this.goodsList = res.data.goods
        this.total = res.data.total
      },

      // pagesize改变时触发
      handleSizeChange(newSize) {
        console.log(this.queryInfo);
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
        console.log(this.total);
      },
      // pageNum改变时触发
      handleCurrentChange(newNum) {
        this.queryInfo.pagenum = newNum
        this.getGoodsList()
      },
      // 删除商品
      async deteteById(id) {
        const confirmResult = await this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)

        if (confirmResult === 'cancel') {
          return this.$message.info('已取消删除')
        }

        const {data:res} = await this.$http.delete(`goods/${id}`)
        if(res.meta.status !== 200){
          return this.$message.error('删除记录失败')
        }
        this.$message.success('删除记录成功')
        this.getGoodsList()
      },
      // 添加商品按钮
      goAdd(){
        // this.$router.push() 页面跳转到其他页面
        this.$router.push('/goods/add')
      }
    }
  }

</script>

<style lang="less" scoped>

</style>
